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Proceedings Paper

Examination of material outgassing in the air and purging flow environments
Author(s): Chien W. Chang
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Paper Abstract

This paper examines outgassing kinetics in the air and purging flow environments, as well as including a comparison to full outgassing in vacuum. The experimental data and models reported in the literature on the material outgassing in those environments are examined and summarized. The models are used to examine evaporation of water and DC 200 silicone fluid and outgassing of representative spacecraft materials in the normal air, purging flow and vacuum environments. The models can be used to estimate the outgassing rates of materials under various conditions in those environments, by knowing the outgassing rate in one of those environments. The implication of study results to spacecraft contamination control is also addressed.

Paper Details

Date Published: 15 October 2004
PDF: 9 pages
Proc. SPIE 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control, (15 October 2004); doi: 10.1117/12.556216
Show Author Affiliations
Chien W. Chang, Lockheed Martin Space Systems Co. (United States)


Published in SPIE Proceedings Vol. 5526:
Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control
John C. Fleming; Michael G. Dittman; Philip T. C. Chen, Editor(s)

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